Air-draft motor



. G. BERRY.

Am DRAFT Morea. APPLICATION FILED IUNE 3,1920.

Patented May 31, 1921.

I Golden Beriy.

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. Motors, of which'the'following is a ,vide simple but efficient means for GOLDEN BERRY, onor-recorren, OKLAHOMA.

Ain-DRAFT rio-Toa.

rseaeae.

Application filed June s, i920. serial Nassaee.

To all w kom t may concern Be it known that l, GOLDEN BERRY, a citiposes of Vrunning toys', fans, Ventilating rooms, etc. .Y

A further object of the invention is'to pro- Yvide a draft motor with a rela-tively long 'l draft tube or flue, arranged to be supported lin any suitable manner and position while the device is in operation, 'but which can be telescoped into the flue case so as to makethe apparatus portable. l v

Afurther obj ect of the invention is to p rosecuring the flue sections together. f 1

A still further object'ofthe inventionris n to provideaynoiseless, frictionlessand oilless motor, capable of ruiming without at-pV tention, in any position and at anytime.

Other objects and advantages will appear in the following specification, reference b eing had to the accompanying drawing, in which Figure 1 is a perspective view of the flue case as it appears when in its portable condition, t

` Fig. 2l is a vertical section of the case, showing the draft tube or flue telescoped therein, D

Fig.l 3 is a side elevation showing the draft tube extended and the motor in the opera# tive position,

Fig. 1 is a detail enlarged section, showing tlie'motor fitted vin place inside of the fine case, when the deviceis in the operative position, and t' n n j 'Y Fig. 5 is a detail sectional view, more specifically referred to below, illustrating how the liue'sections are joined. 0

In carrying outy my invention, I provide a case 1, "of heavy cardboard, sheet metal, or

other `suitable material, vwith an inner wall 2,

Specification of Letters Patent.' i v, :Pgrijufgd May 31,192L l a closed and rather heavy bottom 3 and a` I partition 4L adjacent to which the draft tube or flue fis secured, as clearly shown in Fig'.`

4. The upper end of thecase 1 is open both at theY space between the wallsl and 2 and in the center'.` The draft tube 5 is so made that when'y it is desired to pack the appara-tus when notvin use, itt-can be collapsed or telescoped into the spacebetween the walls l and 2, as .clear-ly' shown` in Fig. 2. This is one of vthe im` p'ortant. features ofthe invention and'lendsf directly toward the portability oflthe draft motor.

Paper. or 'other similar ployed in making the draft tube 5, which consists of major .sections defined inFig.V 3

. y material is em-v f betweenl the points marked 6. fflnter'mediately ofV these points, the major sections are strengthened by hoops llof wire, or` other Y The major sections are Y suitable material. joined at the points 6, the joints comprising an inner band 8 on one of the sections,

through which the points of ajplii'ralityV of pins 9 project in orderlthat the edge of the i companion section may beY impaled. thereon when fitted in'place over the band. l

An elastic ribbon V10 serves to keep the pins in place and to prevent the `major sections from pulling apart. 1t Vis-to be Ob'- served Vthatthe bandS is reinforced by a vnumber of wire hoops 11 as shown in Fig. 5.

The motor, or active part of the apparatus, comprises the propeller 12 on the shaft 13,

which has needle or pointed endsla, con-v tacting the vend-bearing's 15.. The shaft is parts of the bearings.

A balance wheel' 17 `serves to equalize the motion of theshaft. Although this wheel is not so shown in the drawing, in actualpracvtice is van open wheel so that the air can pass held in place by brackets 16 which lformV i through the tube 18 inwhich the motor is l housed, .when in the operative position illus- 19 may be fixed on the shaft 13 so that 'the trated in Fig. Any suitable type of'pulley j power can vbe taken off by means of belt 20.V A flange 21 ont-he tube`18 is engagedfby the securing means 22'jt-o, holdthel motor in-place in the inner case 2when it is either in the .operative or inoperative position. To free the moar tube '18,' 'it is only necessary to 'i turn the securing means 22 a quarter revolution so as to open the passage for the flange 2l.

The operation may be briefly reviewed to advantage. Under ordinary conditions, that is to say, when apparatus is collapsed and not in use, it appears very much as illustrated in Fig. l. motor is turned around, as

ig. 2, so that only the short end shown in of the .tube appears beyond the lower end of the outer case l. Rings 23 on the case l, are for the purpose of turning the apparatus up until the draft tube is Withdrawn from the space bet-Ween the inner and outer Walls 2 and l, and are thereafter employed in assist- 'ing to support the apparatus in the operaprovided.

The tube 5 and inner case 2 novv constitute an air conduit through which a stream of air passes from the bottom through the top. This moving' stream of air causes the propeller .l2 to rapidly revolve, consequently turning the pulley 19 and enabling the power to be taken off for the purpose of running small toys, etc. lThe needle points of the motori shaft 18 require no lubrication, and

,being sharpened doivn to points, consequently cause but very little friction in running. Y

YVhile the construction and arrangement of the improved air draft motoras herein lescribed andV claimed, is that of a generally preferred fori-n, obviously modifications and changes can be made Without departing from the spirit of the invention or `he scope of the claims. Y

l claim l. An air-operated appliance, comprising case, an air motor reversible from an operativeposition for substantial concealment, and a draft tube collapsible into the case, to rende" the appliance compact and portable.

2. An air-operated appliance, comprising a rigid case, a collapsible draft tube normally telescopen Within the confines of the Vcase but extensibleto provide an` air conduit, and an airinotor normally substantially concealed Within the confines of the case but reversible to assume an operative position at the mouth of the air conduit'in the case.

3. An air-operated appliance, comprising a double-walled case providing a tube-space .d air passage, a flexible draft tube secured embodying andnormally collapsed in the tube space, but extensible in continuation of the air passage to constitute an air conduit; and an air motor normally housed in the air passage When inoperative, but reversible at the mouth of said passage to assume the operative position.

4. The combination. in an air-operated appliance, of an air tube, With a bottom collar; an air motor normally housed in the tubo when inoperative, .vith a flange enthe collar, but reversible in respect to the tubo to an operative position, when the flange again engages the Collar; and means carried by the collar for engaging the flange under both circumstances to secure the motor in either position.

5. rlhe combination in an air-operated appliance, of an air motor including a partiallj;7 open tube, supporting a shaft With a propeller and pulley; and an air tube in the end of which the open tube end, propelle and pulley are concealed when the motor is inoperative, but in respect to which the motor is reversible to expose the open tube end, propeller and pulley for operation.

6. rllhe combination in an air-operated appliance, vof a case including an outer Wall and an air tube on the inside and spaced therefrom, with a collar providing a bottom in the space; an air motor including an open tube, with journals and retaining means for the needle ends of a motor shaft, carrying a propeller, pulley and balance Wheel; a flange near one end of the tube, contacting the collar When the motor is substantially housed in the air tube in the inoperative position, and again contacting the collar when the motor is reversed to expose the aforesaid part in the operative position; and means carried by the collar for securing the flange and motor in both positions.

7. rlhe combination in an air-operated e, of a rigid double-tube case, delining a craft tube space and an air passage; andv draft tube secured at one end at the bottom of the tube space, fitting around the inner tube and eXtensible in continuation of the air passage, Consisting of a .plurality of major sections of suitable reinforced flexible material, With means by which the sections are secured together, and a stiffening collar at the end of the uppermost section'.

8. A draft motor, including a draft tube composed of a plurality of major sections of flexible material, one end of each section i a stiifening band with reinforcmeans, with a plurality of pins on the end of which the end of another section is impaled, and means encircling said structure keeping the section ends together when joined.

GOLDEN BERRY, 

